The CW’s Supergirl and The Flash will team up — musically — in a two-part episode airing during the second half of the 2016-17 TV season, it was announced on Thursday at the Television Critics Association summer press tour.
“Yes, there will be a musical crossover,” executive producer Greg Berlanti said. “There’s going to be a musical pair of episodes in the back half of the year between Supergirl and The Flash.”
Supergirl and The Flash are fronted by Melissa Benoist and Grant Gustin, both of whom are Glee alumni. Supergirl‘s Jeremy Jordan and The Flash‘s Jesse L. Martin, meanwhile, are among those who also boast singing chops. Berlanti also cited Arrow‘s John Barrowman and Legends of Tomorrow‘s Victor Garber as musically gifted ensemble members.
Though Berlanti expects the characters to mostly sing preexisting tunes, “We have been talking about trying to write at least one original song per episode.”
As for what will tee up the special event, Berlanti said, “We’ve toyed with who potentially the villain could be,” and “we’ll be careful how we break into song,” hinting that some numbers could take place “in the characters’ heads.”
The Supergirl/Flash musical event is in addition to the four-way crossover airing late this fall across all four of The CW’s superhero programs.